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Q & A: Frequency versus wavelength

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Most recent answer: 02/23/2008
Q:
How would I calculate the frequency of a Ruby Laser knowing the wavelength is .6943 micro m
- Dave (age 54)
Mtn. Home, Idaho
A:
The relationship is given by  f = c / lambda where f is the frequency, lambda is the wavelength and c is the speed of light, 3x108 meters/second.   Plugging in 0.6943 x 10-6m you get
f = 4.32 x 1014 Hz.   That's a whole bunch, not even dogs can hear it. 

LeeH

(published on 02/23/2008)

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